Home / 18,746.25-28,123.16-8,358

Finding the Fourth Proportional to 18,746.25, 28,123.16 and 8,358

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Solution

The fourth proportional to 18,746.25, 28,123.16 and 8,358 is: 12,538.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,746.25 : 28,123.16 = 8,358 : x
  2. Step 2: Convert to fraction form
    18,746.25/28,123.16 = 8,358/x
  3. Step 3: Cross multiply
    18,746.25x = 28,123.16 × 8,358
  4. Step 4: Simplify right side
    18,746.25x = 235,053,329.49
  5. Step 5: Solve for x
    x = 235,053,329.49/18,746.25
  6. Step 6: Final answer
    x = 12,538.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.